Garmin echoMAP 73dv Installation manual

echoMAP™ 70/90 Series Installation

Instructions

To obtain the best performance and to avoid damage to your boat, install the device according to these instructions.

Read all installation instructions before proceeding with the installation. If you experience difficulty during the installation, contact Garmin® Product Support.

Important Safety Information

WARNING

See the Important Safety and Product Information guide in the product box for product warnings and other important information.

When connecting the power cable, do not remove the in-line fuse holder. To prevent the possibility of injury or product damage caused by fire or overheating, the appropriate fuse must be in place as indicated in the product specifications. In addition, connecting the power cable without the appropriate fuse in place voids the product warranty.

CAUTION

Always wear safety goggles, ear protection, and a dust mask when drilling, cutting, or sanding.

NOTICE

When drilling or cutting, always check what is on the opposite side of the surface.

To obtain the best performance and to avoid damage to your boat, install the device according to these instructions.

Read all installation instructions before proceeding with the installation. If you experience difficulty during the installation, contact Garmin Product Support.

Before permanently installing any part of your device, you should plan the installation by determining the location of the various components.

• The mounting location must provide a clear view of the screen and access to the keys on the device.

• The mounting location must be sturdy enough to support the device and the mount.

• The cables must be long enough to connect the components to each other and to power.

• The cables can be routed under the bail mount or behind the device.

• To avoid interference with a magnetic compass, the device should not be installed closer to a compass than the compass-safe distance value listed in the product specifications.

Bail Mounting the Device

NOTICE

If you are mounting the bracket on fiberglass with screws, it is recommended to use a countersink bit to drill a clearance counterbore through only the top gel-coat layer. This will help to avoid cracking in the gel-coat layer when the screws are tightened.

Stainless-steel screws may bind when screwed into fiberglass and overtightened. It is recommended to apply an anti-seize lubricant on the screws before installing them.

Select the mounting hardware appropriate for your mounting

surface and for the bail-mount bracket. Using the bail-mount bracket À as a template, mark the pilot

holes through the screw holes Á.

Registering Your Device

Help us better support you by completing our online registration today.

• Go to http://my.garmin.com.

• Keep the original sales receipt, or a photocopy, in a safe place.

Contacting Garmin Product Support

• Go to www.garmin.com/support for in-country support information.

• In the USA, call 913-397-8200 or 1-800-800-1020.

• In the UK, call 0808 238 0000.

• In Europe, call +44 (0) 870 850 1241.

Tools Needed

• Drill and drill bits

• #2 Phillips screwdriver

• Jigsaw or rotary tool

• File and sandpaper

• Marine sealant (optional)

Mounting Considerations

The device can be mounted using the included bracket, or it can be mounted flush with the dashboard using a flush-mount kit (may be sold separately).

Using a drill bit appropriate for the mounting hardware, drill

the four pilot holes. Using the selected mounting hardware, secure the bail-mount

bracket to the mounting surface. Place the device into the cradle Â.

Install the bail-mount knobs Ã on the sides of the device.

Place the cradle in the bail-mount bracket and tighten the

bail-mount knobs.

Flush Mounting the Device

NOTICE

Be careful when cutting the hole to flush mount the device. There is only a small amount of clearance between the case and the mounting holes, and cutting the hole too large could compromise the stability of the device after it is mounted.

Using a metal pry tool such as a screwdriver can damage the trim caps and the device. Use a plastic pry tool when possible.

A flush-mount template and hardware can be used to mount the device in your dashboard.

September 2016

Printed in Taiwan 190-01835-12_0A

Trim the template and make sure it fits in the location where

you want to mount the device. Secure the template to the selected mounting location.

Using a 9.5 mm (3/8 in.) drill bit, drill one or more of the holes

inside the corners of the solid line on the template to prepare the mounting surface for cutting.

Using a jigsaw or rotary cutting tool, cut the mounting surface

along the inside of the solid line indicated on the template. Place the device into the cutout to test the fit.

If necessary, use a file and sandpaper to refine the size of

the hole.

NOTE: Not all devices have trim caps.

Using a pry tool such as a flat piece of plastic or a screwdriver, carefully pry up the corners of the trim caps and slide the pry tool to the center Á to remove the trim caps.

Ensure the mounting holes on the device line up with the pilot

holes on the template. If the mounting holes on the device do not line up, mark the

new pilot-hole locations. Using a 3.2 mm (1/8 in.) drill bit, drill the pilot holes.

Remove the template from the mounting surface.

If you will not have access to the back of the device after you

mount it, connect all necessary cables to the device before placing it into the cutout.

NOTE: To prevent corrosion of the metal contacts, cover unused connectors with weather caps.

Install the rubber gasket pieces on the back of the device.

The pieces of the rubber gasket have adhesive on the back. Make sure you remove the protective liner before installing them on the device.

Wiring Harness

• The wiring harness connects the device to power and NMEA 0183 devices.

• The device has one internal NMEA 0183 port that is used to connect to NMEA 0183 compliant devices.

• If it is necessary to extend the power and ground wires, you must use .82 mm2 (18 AWG) or larger wire.

• If it is necessary to extend the NMEA 0183 or alarm wires, you must use .33 mm2 (22 AWG) wire.

Item Wire Function Wire Color

NMEA 0183 internal port Rx (in) Brown

NMEA 0183 internal port Tx (out) Blue

Ground (power and NMEA 0183) Black

Power Red

Connecting the Wiring Harness to Power

Route the wiring harness to the power source and to the

device. Connect the red wire to the positive (+) battery terminal, and

connect the black wire to the negative (-) battery terminal.

NMEA 0183 Connection Considerations

• The installation instructions provided with your NMEA 0183 compatible device should contain the information you need to identify the transmitting (Tx) and receiving (Rx) A (+) and B (-) wires.

NMEA 0183 Connection Diagram

Item Description

À Á Â

Item Garmin Wire

Ê Ë Ì Í Î

12 Vdc power source

Wiring harness

NMEA 0183 compliant device

Function

Power Red Power

Ground Black Data ground

Tx/Rx Tx/Rx/B (-)

Tx Blue Rx/A (+)

Rx Brown Tx/A (+)

Garmin Wire Color

NMEA 0183 Device Wire Function

Place the device into the cradle.

Securely connect each cable to a port on the cradle.

Place the locking bracket over the cables.

Place the device into the cutout.

Secure the device to the mounting surface using the included

screws. Install the trim caps by snapping them in place around the

edges of the device.

2 echoMAP 70/90 Series Installation Instructions

Installing the Cables and Connectors

Wiring to Power

Route the power cable from the swivel mount to the boat

battery or fuse block. If necessary, extend the wires using .82 mm2 (18 AWG) or

larger wire. Connect the red wire to the positive terminal on the battery or

fuse block, and connect the black wire to the negative terminal.

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